Actor Sam Page just became a first-time dad!

The former Mad Men guest star revealed on Tuesday that his wife, Cassidy Boesch, has given birth to a baby boy named Logan.

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The 39-year-old also shared a ridiculously cute photo on Instagram of the newborn cuddled up next to the family’s dog.

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“The newest, best and brightest part of my life hanging out with the chillest and hairiest part,” Sam captioned the pic. “These two are going to learn a lot from each other. Welcome to the world, my son Logan.”

This is the first child for the couple, who married in November 2014. Mean Girls star Jonathan Bennett served as one of the groomsman.

Congrats to the new family-of-three!